1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jok3333 [9.3K]
3 years ago
15

What is the atomic mass of an atom that has 3 protons and 4 neutrons

Chemistry
1 answer:
Ainat [17]3 years ago
5 0
Atomic Mass is equal to the sum of the number of protons and neutrons.

Thus the atomic mass = 3  +  4
  
                                    =   7

You might be interested in
The atmospheric pressure on a mountain is 550 mmHg and 1
andrew11 [14]

Answer:

0.72

Explanation:

if 760=1

550=x

=550÷760= 0.72 in two s.f

5 0
3 years ago
What type of intermolecular force accounts for the following differences in each case?
antoniya [11.8K]
This will be highly depended on the case, 
for example, when hydrogen attached to electromotive atom, we call it hydrogen bonding.
if the electrons in two atoms make them temporary dipole, we called it london dispersion forces, etc

<span />
5 0
4 years ago
How to identify whether is it solid/liquid/gas/aqeous?​
MA_775_DIABLO [31]

Answer:

You have to know what the three sates of matter are

Explanation:

4 0
3 years ago
What is the dropped down number in a chemical formula that tells the number of atoms of a particular element? *
densk [106]
The lack of a number preceding the carbon symbol C and the compound formula CO2 shows that there is one carbon atom and one carbon dioxide molecule. Subscript numbers in chemical formulas represent the number of atoms or molecules immediately preceding the subscript.
3 0
3 years ago
Read 2 more answers
(4.2 x 10^8) + (2.6 x 10^6) *
hodyreva [135]

Answer:

4.226×10^8

Explanation:

4.2 ×10^8+2.6×10^6=422600000

or 4.226×10^8

5 0
3 years ago
Other questions:
  • Write the half reactions for 2Li + H2 -&gt; 2LiH.
    8·1 answer
  • What is Keq for the reaction N2 + 3H2 2NH3 if the equilibrium concentrations are [NH3] = .250 M, [N2] = .590 M, and [H2] = .750
    5·2 answers
  • In two or more complete sentences, describe how one of the occupations that you studied would use descriptive statistics when pe
    13·1 answer
  • The scientific principle which is the basis for balancing chemical equations is
    13·1 answer
  • 50.g of NaNO3 was dissolved in 1250 mL of water. what is the molality of the solution? [ Molar mass of NaNO3 = 85 g/mol
    6·1 answer
  • Adenosine triphosphate (ATP) is the main energy currency used in cells. ATP hydrolysis is coupled with unfavorable reactions, ma
    6·1 answer
  • 2KOH + H2SO4 → K2SO4 + 2H20
    10·1 answer
  • The color of an outfit object is the color of the light that it
    9·1 answer
  • Match the gas sample with each others.
    11·1 answer
  • "What are 2 parts that plants and animals both have?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!